Analysis
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max time kernel
120s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240319-en -
resource tags
arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system -
submitted
15-04-2024 13:58
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
f139440f283bf6c7219184c185516883_JaffaCakes118.dll
Resource
win7-20240319-en
3 signatures
150 seconds
General
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Target
f139440f283bf6c7219184c185516883_JaffaCakes118.dll
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Size
556KB
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MD5
f139440f283bf6c7219184c185516883
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SHA1
ae78dd331c5ff8cc2a522c2412665529d32a837a
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SHA256
dd21e820441964cce318a73313c5e77fc706c1a04c5166754755b211f4cab510
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SHA512
ee7b93206027dba4e6ca8a0690c6679afadb5bf5ea63b2024c07a6e4a211716975ae4e3d3e25c3645032340106caee0a49743a2ad8d16c8c9552b6a5bb87722e
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SSDEEP
12288:jyA1ZdqVfv/6HftOIA3+00wstpSdCi3TLdrviTzPPfkKVBwI:H1fqZCHwIr00taCiHR6T7PsK
Malware Config
Signatures
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Installs/modifies Browser Helper Object 2 TTPs 1 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{CC01FC6C-A7EE-A1F5-2181-4E2DCF26DF8F} regsvr32.exe -
Modifies registry class 11 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-A7EE-A1F5-2181-4E2DCF26DF8F} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-A7EE-A1F5-2181-4E2DCF26DF8F}\ = "xx" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-A7EE-A1F5-2181-4E2DCF26DF8F}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f139440f283bf6c7219184c185516883_JaffaCakes118.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\f139440f283bf6c7219184c185516883_JaffaCakes118.xx regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\f139440f283bf6c7219184c185516883_JaffaCakes118.xx\ = "xx" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\f139440f283bf6c7219184c185516883_JaffaCakes118.xx\Clsid regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\f139440f283bf6c7219184c185516883_JaffaCakes118.xx\Clsid\ = "{CC01FC6C-A7EE-A1F5-2181-4E2DCF26DF8F}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-A7EE-A1F5-2181-4E2DCF26DF8F}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-A7EE-A1F5-2181-4E2DCF26DF8F}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-A7EE-A1F5-2181-4E2DCF26DF8F}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-A7EE-A1F5-2181-4E2DCF26DF8F}\ProgID\ = "f139440f283bf6c7219184c185516883_JaffaCakes118.xx" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1916 wrote to memory of 1784 1916 regsvr32.exe 28 PID 1916 wrote to memory of 1784 1916 regsvr32.exe 28 PID 1916 wrote to memory of 1784 1916 regsvr32.exe 28 PID 1916 wrote to memory of 1784 1916 regsvr32.exe 28 PID 1916 wrote to memory of 1784 1916 regsvr32.exe 28 PID 1916 wrote to memory of 1784 1916 regsvr32.exe 28 PID 1916 wrote to memory of 1784 1916 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\f139440f283bf6c7219184c185516883_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1916 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\f139440f283bf6c7219184c185516883_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:1784
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